package ketang.Person;

public class Person_A extends Person{
    public Person_A(){
        super();
    }
    public Person_A(int a){
        System.out.println(a);
    }
    public void func(){
        System.out.println("2");
    }

    public static void main(String[] args) {
        Person_A A=new Person_A();
        Person_A B=new Person_A(3);
    }
}
